2 Copyright (C) Intel Corp. 2006. All Rights Reserved.
3 Intel funded Tungsten Graphics to
4 develop this 3D driver.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a copy of this software and associated documentation files (the
8 "Software"), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sublicense, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
14 The above copyright notice and this permission notice (including the
15 next paragraph) shall be included in all copies or substantial
16 portions of the Software.
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **********************************************************************/
29 * Keith Whitwell <keithw@vmware.com>
33 #include "main/imports.h"
34 #include "program/prog_parameter.h"
35 #include "program/prog_print.h"
36 #include "program/prog_to_nir.h"
37 #include "program/program.h"
38 #include "program/programopt.h"
40 #include "util/ralloc.h"
41 #include "compiler/glsl/ir.h"
42 #include "compiler/glsl/glsl_to_nir.h"
44 #include "brw_program.h"
45 #include "brw_context.h"
46 #include "compiler/brw_nir.h"
47 #include "brw_defines.h"
48 #include "intel_batchbuffer.h"
51 brw_nir_lower_uniforms(nir_shader
*nir
, bool is_scalar
)
54 nir_assign_var_locations(&nir
->uniforms
, &nir
->num_uniforms
,
55 type_size_scalar_bytes
);
56 return nir_lower_io(nir
, nir_var_uniform
, type_size_scalar_bytes
, 0);
58 nir_assign_var_locations(&nir
->uniforms
, &nir
->num_uniforms
,
59 type_size_vec4_bytes
);
60 return nir_lower_io(nir
, nir_var_uniform
, type_size_vec4_bytes
, 0);
65 brw_create_nir(struct brw_context
*brw
,
66 const struct gl_shader_program
*shader_prog
,
67 struct gl_program
*prog
,
68 gl_shader_stage stage
,
71 struct gl_context
*ctx
= &brw
->ctx
;
72 const nir_shader_compiler_options
*options
=
73 ctx
->Const
.ShaderCompilerOptions
[stage
].NirOptions
;
77 /* First, lower the GLSL IR or Mesa IR to NIR */
79 nir
= glsl_to_nir(shader_prog
, stage
, options
);
80 nir_remove_dead_variables(nir
, nir_var_shader_in
| nir_var_shader_out
);
81 nir_lower_returns(nir
);
82 nir_validate_shader(nir
);
83 NIR_PASS_V(nir
, nir_lower_io_to_temporaries
,
84 nir_shader_get_entrypoint(nir
), true, false);
86 nir
= prog_to_nir(prog
, options
);
87 NIR_PASS_V(nir
, nir_lower_regs_to_ssa
); /* turn registers into SSA */
89 nir_validate_shader(nir
);
93 nir
= brw_preprocess_nir(brw
->screen
->compiler
, nir
);
95 if (stage
== MESA_SHADER_FRAGMENT
) {
96 static const struct nir_lower_wpos_ytransform_options wpos_options
= {
97 .state_tokens
= {STATE_INTERNAL
, STATE_FB_WPOS_Y_TRANSFORM
, 0, 0, 0},
98 .fs_coord_pixel_center_integer
= 1,
99 .fs_coord_origin_upper_left
= 1,
101 _mesa_add_state_reference(prog
->Parameters
,
102 (gl_state_index
*) wpos_options
.state_tokens
);
104 NIR_PASS(progress
, nir
, nir_lower_wpos_ytransform
, &wpos_options
);
107 NIR_PASS(progress
, nir
, nir_lower_system_values
);
108 NIR_PASS_V(nir
, brw_nir_lower_uniforms
, is_scalar
);
110 nir_shader_gather_info(nir
, nir_shader_get_entrypoint(nir
));
112 /* Copy the info we just generated back into the gl_program */
113 const char *prog_name
= prog
->info
.name
;
114 const char *prog_label
= prog
->info
.label
;
115 prog
->info
= nir
->info
;
116 prog
->info
.name
= prog_name
;
117 prog
->info
.label
= prog_label
;
120 NIR_PASS_V(nir
, nir_lower_samplers
, shader_prog
);
121 NIR_PASS_V(nir
, nir_lower_atomics
, shader_prog
);
128 get_new_program_id(struct intel_screen
*screen
)
130 static pthread_mutex_t m
= PTHREAD_MUTEX_INITIALIZER
;
131 pthread_mutex_lock(&m
);
132 unsigned id
= screen
->program_id
++;
133 pthread_mutex_unlock(&m
);
137 static struct gl_program
*brwNewProgram(struct gl_context
*ctx
, GLenum target
,
138 GLuint id
, bool is_arb_asm
)
140 struct brw_context
*brw
= brw_context(ctx
);
141 struct brw_program
*prog
= rzalloc(NULL
, struct brw_program
);
144 prog
->id
= get_new_program_id(brw
->screen
);
146 return _mesa_init_gl_program(&prog
->program
, target
, id
, is_arb_asm
);
152 static void brwDeleteProgram( struct gl_context
*ctx
,
153 struct gl_program
*prog
)
155 struct brw_context
*brw
= brw_context(ctx
);
157 /* Beware! prog's refcount has reached zero, and it's about to be freed.
159 * In brw_upload_pipeline_state(), we compare brw->foo_program to
160 * ctx->FooProgram._Current, and flag BRW_NEW_FOO_PROGRAM if the
161 * pointer has changed.
163 * We cannot leave brw->foo_program as a dangling pointer to the dead
164 * program. malloc() may allocate the same memory for a new gl_program,
165 * causing us to see matching pointers...but totally different programs.
167 * We cannot set brw->foo_program to NULL, either. If we've deleted the
168 * active program, Mesa may set ctx->FooProgram._Current to NULL. That
169 * would cause us to see matching pointers (NULL == NULL), and fail to
170 * detect that a program has changed since our last draw.
172 * So, set it to a bogus gl_program pointer that will never match,
173 * causing us to properly reevaluate the state on our next draw.
175 * Getting this wrong causes heisenbugs which are very hard to catch,
176 * as you need a very specific allocation pattern to hit the problem.
178 static const struct gl_program deleted_program
;
180 if (brw
->vertex_program
== prog
)
181 brw
->vertex_program
= &deleted_program
;
183 if (brw
->tess_ctrl_program
== prog
)
184 brw
->tess_ctrl_program
= &deleted_program
;
186 if (brw
->tess_eval_program
== prog
)
187 brw
->tess_eval_program
= &deleted_program
;
189 if (brw
->geometry_program
== prog
)
190 brw
->geometry_program
= &deleted_program
;
192 if (brw
->fragment_program
== prog
)
193 brw
->fragment_program
= &deleted_program
;
195 if (brw
->compute_program
== prog
)
196 brw
->compute_program
= &deleted_program
;
198 _mesa_delete_program( ctx
, prog
);
203 brwProgramStringNotify(struct gl_context
*ctx
,
205 struct gl_program
*prog
)
207 assert(target
== GL_VERTEX_PROGRAM_ARB
|| !prog
->arb
.IsPositionInvariant
);
209 struct brw_context
*brw
= brw_context(ctx
);
210 const struct brw_compiler
*compiler
= brw
->screen
->compiler
;
213 case GL_FRAGMENT_PROGRAM_ARB
: {
214 struct brw_program
*newFP
= brw_program(prog
);
215 const struct brw_program
*curFP
=
216 brw_program_const(brw
->fragment_program
);
219 brw
->ctx
.NewDriverState
|= BRW_NEW_FRAGMENT_PROGRAM
;
220 newFP
->id
= get_new_program_id(brw
->screen
);
222 prog
->nir
= brw_create_nir(brw
, NULL
, prog
, MESA_SHADER_FRAGMENT
, true);
224 brw_fs_precompile(ctx
, prog
);
227 case GL_VERTEX_PROGRAM_ARB
: {
228 struct brw_program
*newVP
= brw_program(prog
);
229 const struct brw_program
*curVP
=
230 brw_program_const(brw
->vertex_program
);
233 brw
->ctx
.NewDriverState
|= BRW_NEW_VERTEX_PROGRAM
;
234 if (newVP
->program
.arb
.IsPositionInvariant
) {
235 _mesa_insert_mvp_code(ctx
, &newVP
->program
);
237 newVP
->id
= get_new_program_id(brw
->screen
);
239 /* Also tell tnl about it:
241 _tnl_program_string(ctx
, target
, prog
);
243 prog
->nir
= brw_create_nir(brw
, NULL
, prog
, MESA_SHADER_VERTEX
,
244 compiler
->scalar_stage
[MESA_SHADER_VERTEX
]);
246 brw_vs_precompile(ctx
, prog
);
251 * driver->ProgramStringNotify is only called for ARB programs, fixed
252 * function vertex programs, and ir_to_mesa (which isn't used by the
253 * i965 back-end). Therefore, even after geometry shaders are added,
254 * this function should only ever be called with a target of
255 * GL_VERTEX_PROGRAM_ARB or GL_FRAGMENT_PROGRAM_ARB.
257 unreachable("Unexpected target in brwProgramStringNotify");
264 brw_memory_barrier(struct gl_context
*ctx
, GLbitfield barriers
)
266 struct brw_context
*brw
= brw_context(ctx
);
267 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
268 unsigned bits
= (PIPE_CONTROL_DATA_CACHE_FLUSH
|
269 PIPE_CONTROL_NO_WRITE
|
270 PIPE_CONTROL_CS_STALL
);
271 assert(devinfo
->gen
>= 7 && devinfo
->gen
<= 10);
273 if (barriers
& (GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT
|
274 GL_ELEMENT_ARRAY_BARRIER_BIT
|
275 GL_COMMAND_BARRIER_BIT
))
276 bits
|= PIPE_CONTROL_VF_CACHE_INVALIDATE
;
278 if (barriers
& GL_UNIFORM_BARRIER_BIT
)
279 bits
|= (PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE
|
280 PIPE_CONTROL_CONST_CACHE_INVALIDATE
);
282 if (barriers
& GL_TEXTURE_FETCH_BARRIER_BIT
)
283 bits
|= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE
;
285 if (barriers
& GL_TEXTURE_UPDATE_BARRIER_BIT
)
286 bits
|= PIPE_CONTROL_RENDER_TARGET_FLUSH
;
288 if (barriers
& GL_FRAMEBUFFER_BARRIER_BIT
)
289 bits
|= (PIPE_CONTROL_DEPTH_CACHE_FLUSH
|
290 PIPE_CONTROL_RENDER_TARGET_FLUSH
);
292 /* Typed surface messages are handled by the render cache on IVB, so we
293 * need to flush it too.
295 if (devinfo
->gen
== 7 && !brw
->is_haswell
)
296 bits
|= PIPE_CONTROL_RENDER_TARGET_FLUSH
;
298 brw_emit_pipe_control_flush(brw
, bits
);
302 brw_blend_barrier(struct gl_context
*ctx
)
304 struct brw_context
*brw
= brw_context(ctx
);
305 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
307 if (!ctx
->Extensions
.MESA_shader_framebuffer_fetch
) {
308 if (devinfo
->gen
>= 6) {
309 brw_emit_pipe_control_flush(brw
,
310 PIPE_CONTROL_RENDER_TARGET_FLUSH
|
311 PIPE_CONTROL_CS_STALL
);
312 brw_emit_pipe_control_flush(brw
,
313 PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE
);
315 brw_emit_pipe_control_flush(brw
,
316 PIPE_CONTROL_RENDER_TARGET_FLUSH
);
322 brw_get_scratch_bo(struct brw_context
*brw
,
323 struct brw_bo
**scratch_bo
, int size
)
325 struct brw_bo
*old_bo
= *scratch_bo
;
327 if (old_bo
&& old_bo
->size
< size
) {
328 brw_bo_unreference(old_bo
);
333 *scratch_bo
= brw_bo_alloc(brw
->bufmgr
, "scratch bo", size
, 4096);
338 * Reserve enough scratch space for the given stage to hold \p per_thread_size
339 * bytes times the given \p thread_count.
342 brw_alloc_stage_scratch(struct brw_context
*brw
,
343 struct brw_stage_state
*stage_state
,
344 unsigned per_thread_size
,
345 unsigned thread_count
)
347 if (stage_state
->per_thread_scratch
< per_thread_size
) {
348 stage_state
->per_thread_scratch
= per_thread_size
;
350 if (stage_state
->scratch_bo
)
351 brw_bo_unreference(stage_state
->scratch_bo
);
353 stage_state
->scratch_bo
=
354 brw_bo_alloc(brw
->bufmgr
, "shader scratch space",
355 per_thread_size
* thread_count
, 4096);
359 void brwInitFragProgFuncs( struct dd_function_table
*functions
)
361 assert(functions
->ProgramStringNotify
== _tnl_program_string
);
363 functions
->NewProgram
= brwNewProgram
;
364 functions
->DeleteProgram
= brwDeleteProgram
;
365 functions
->ProgramStringNotify
= brwProgramStringNotify
;
367 functions
->LinkShader
= brw_link_shader
;
369 functions
->MemoryBarrier
= brw_memory_barrier
;
370 functions
->BlendBarrier
= brw_blend_barrier
;
373 struct shader_times
{
380 brw_init_shader_time(struct brw_context
*brw
)
382 const int max_entries
= 2048;
383 brw
->shader_time
.bo
=
384 brw_bo_alloc(brw
->bufmgr
, "shader time",
385 max_entries
* BRW_SHADER_TIME_STRIDE
* 3, 4096);
386 brw
->shader_time
.names
= rzalloc_array(brw
, const char *, max_entries
);
387 brw
->shader_time
.ids
= rzalloc_array(brw
, int, max_entries
);
388 brw
->shader_time
.types
= rzalloc_array(brw
, enum shader_time_shader_type
,
390 brw
->shader_time
.cumulative
= rzalloc_array(brw
, struct shader_times
,
392 brw
->shader_time
.max_entries
= max_entries
;
396 compare_time(const void *a
, const void *b
)
398 uint64_t * const *a_val
= a
;
399 uint64_t * const *b_val
= b
;
401 /* We don't just subtract because we're turning the value to an int. */
402 if (**a_val
< **b_val
)
404 else if (**a_val
== **b_val
)
411 print_shader_time_line(const char *stage
, const char *name
,
412 int shader_num
, uint64_t time
, uint64_t total
)
414 fprintf(stderr
, "%-6s%-18s", stage
, name
);
417 fprintf(stderr
, "%4d: ", shader_num
);
419 fprintf(stderr
, " : ");
421 fprintf(stderr
, "%16lld (%7.2f Gcycles) %4.1f%%\n",
423 (double)time
/ 1000000000.0,
424 (double)time
/ total
* 100.0);
428 brw_report_shader_time(struct brw_context
*brw
)
430 if (!brw
->shader_time
.bo
|| !brw
->shader_time
.num_entries
)
433 uint64_t scaled
[brw
->shader_time
.num_entries
];
434 uint64_t *sorted
[brw
->shader_time
.num_entries
];
435 uint64_t total_by_type
[ST_CS
+ 1];
436 memset(total_by_type
, 0, sizeof(total_by_type
));
438 for (int i
= 0; i
< brw
->shader_time
.num_entries
; i
++) {
439 uint64_t written
= 0, reset
= 0;
440 enum shader_time_shader_type type
= brw
->shader_time
.types
[i
];
442 sorted
[i
] = &scaled
[i
];
452 written
= brw
->shader_time
.cumulative
[i
].written
;
453 reset
= brw
->shader_time
.cumulative
[i
].reset
;
457 /* I sometimes want to print things that aren't the 3 shader times.
458 * Just print the sum in that case.
465 uint64_t time
= brw
->shader_time
.cumulative
[i
].time
;
467 scaled
[i
] = time
/ written
* (written
+ reset
);
480 total_by_type
[type
] += scaled
[i
];
490 fprintf(stderr
, "No shader time collected yet\n");
494 qsort(sorted
, brw
->shader_time
.num_entries
, sizeof(sorted
[0]), compare_time
);
496 fprintf(stderr
, "\n");
497 fprintf(stderr
, "type ID cycles spent %% of total\n");
498 for (int s
= 0; s
< brw
->shader_time
.num_entries
; s
++) {
500 /* Work back from the sorted pointers times to a time to print. */
501 int i
= sorted
[s
] - scaled
;
506 int shader_num
= brw
->shader_time
.ids
[i
];
507 const char *shader_name
= brw
->shader_time
.names
[i
];
509 switch (brw
->shader_time
.types
[i
]) {
536 print_shader_time_line(stage
, shader_name
, shader_num
,
540 fprintf(stderr
, "\n");
541 print_shader_time_line("total", "vs", 0, total_by_type
[ST_VS
], total
);
542 print_shader_time_line("total", "tcs", 0, total_by_type
[ST_TCS
], total
);
543 print_shader_time_line("total", "tes", 0, total_by_type
[ST_TES
], total
);
544 print_shader_time_line("total", "gs", 0, total_by_type
[ST_GS
], total
);
545 print_shader_time_line("total", "fs8", 0, total_by_type
[ST_FS8
], total
);
546 print_shader_time_line("total", "fs16", 0, total_by_type
[ST_FS16
], total
);
547 print_shader_time_line("total", "cs", 0, total_by_type
[ST_CS
], total
);
551 brw_collect_shader_time(struct brw_context
*brw
)
553 if (!brw
->shader_time
.bo
)
556 /* This probably stalls on the last rendering. We could fix that by
557 * delaying reading the reports, but it doesn't look like it's a big
558 * overhead compared to the cost of tracking the time in the first place.
560 void *bo_map
= brw_bo_map(brw
, brw
->shader_time
.bo
, MAP_READ
| MAP_WRITE
);
562 for (int i
= 0; i
< brw
->shader_time
.num_entries
; i
++) {
563 uint32_t *times
= bo_map
+ i
* 3 * BRW_SHADER_TIME_STRIDE
;
565 brw
->shader_time
.cumulative
[i
].time
+= times
[BRW_SHADER_TIME_STRIDE
* 0 / 4];
566 brw
->shader_time
.cumulative
[i
].written
+= times
[BRW_SHADER_TIME_STRIDE
* 1 / 4];
567 brw
->shader_time
.cumulative
[i
].reset
+= times
[BRW_SHADER_TIME_STRIDE
* 2 / 4];
570 /* Zero the BO out to clear it out for our next collection.
572 memset(bo_map
, 0, brw
->shader_time
.bo
->size
);
573 brw_bo_unmap(brw
->shader_time
.bo
);
577 brw_collect_and_report_shader_time(struct brw_context
*brw
)
579 brw_collect_shader_time(brw
);
581 if (brw
->shader_time
.report_time
== 0 ||
582 get_time() - brw
->shader_time
.report_time
>= 1.0) {
583 brw_report_shader_time(brw
);
584 brw
->shader_time
.report_time
= get_time();
589 * Chooses an index in the shader_time buffer and sets up tracking information
592 * Note that this holds on to references to the underlying programs, which may
593 * change their lifetimes compared to normal operation.
596 brw_get_shader_time_index(struct brw_context
*brw
, struct gl_program
*prog
,
597 enum shader_time_shader_type type
, bool is_glsl_sh
)
599 int shader_time_index
= brw
->shader_time
.num_entries
++;
600 assert(shader_time_index
< brw
->shader_time
.max_entries
);
601 brw
->shader_time
.types
[shader_time_index
] = type
;
606 } else if (is_glsl_sh
) {
607 name
= prog
->info
.label
?
608 ralloc_strdup(brw
->shader_time
.names
, prog
->info
.label
) : "glsl";
613 brw
->shader_time
.names
[shader_time_index
] = name
;
614 brw
->shader_time
.ids
[shader_time_index
] = prog
->Id
;
616 return shader_time_index
;
620 brw_destroy_shader_time(struct brw_context
*brw
)
622 brw_bo_unreference(brw
->shader_time
.bo
);
623 brw
->shader_time
.bo
= NULL
;
627 brw_stage_prog_data_free(const void *p
)
629 struct brw_stage_prog_data
*prog_data
= (struct brw_stage_prog_data
*)p
;
631 ralloc_free(prog_data
->param
);
632 ralloc_free(prog_data
->pull_param
);
633 ralloc_free(prog_data
->image_param
);
637 brw_dump_arb_asm(const char *stage
, struct gl_program
*prog
)
639 fprintf(stderr
, "ARB_%s_program %d ir for native %s shader\n",
640 stage
, prog
->Id
, stage
);
641 _mesa_print_program(prog
);
645 brw_setup_tex_for_precompile(struct brw_context
*brw
,
646 struct brw_sampler_prog_key_data
*tex
,
647 struct gl_program
*prog
)
649 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
650 const bool has_shader_channel_select
= brw
->is_haswell
|| devinfo
->gen
>= 8;
651 unsigned sampler_count
= util_last_bit(prog
->SamplersUsed
);
652 for (unsigned i
= 0; i
< sampler_count
; i
++) {
653 if (!has_shader_channel_select
&& (prog
->ShadowSamplers
& (1 << i
))) {
654 /* Assume DEPTH_TEXTURE_MODE is the default: X, X, X, 1 */
656 MAKE_SWIZZLE4(SWIZZLE_X
, SWIZZLE_X
, SWIZZLE_X
, SWIZZLE_ONE
);
658 /* Color sampler: assume no swizzling. */
659 tex
->swizzles
[i
] = SWIZZLE_XYZW
;
665 * Sets up the starting offsets for the groups of binding table entries
666 * common to all pipeline stages.
668 * Unused groups are initialized to 0xd0d0d0d0 to make it obvious that they're
669 * unused but also make sure that addition of small offsets to them will
670 * trigger some of our asserts that surface indices are < BRW_MAX_SURFACES.
673 brw_assign_common_binding_table_offsets(const struct gen_device_info
*devinfo
,
674 const struct gl_program
*prog
,
675 struct brw_stage_prog_data
*stage_prog_data
,
676 uint32_t next_binding_table_offset
)
678 int num_textures
= util_last_bit(prog
->SamplersUsed
);
680 stage_prog_data
->binding_table
.texture_start
= next_binding_table_offset
;
681 next_binding_table_offset
+= num_textures
;
683 if (prog
->info
.num_ubos
) {
684 assert(prog
->info
.num_ubos
<= BRW_MAX_UBO
);
685 stage_prog_data
->binding_table
.ubo_start
= next_binding_table_offset
;
686 next_binding_table_offset
+= prog
->info
.num_ubos
;
688 stage_prog_data
->binding_table
.ubo_start
= 0xd0d0d0d0;
691 if (prog
->info
.num_ssbos
) {
692 assert(prog
->info
.num_ssbos
<= BRW_MAX_SSBO
);
693 stage_prog_data
->binding_table
.ssbo_start
= next_binding_table_offset
;
694 next_binding_table_offset
+= prog
->info
.num_ssbos
;
696 stage_prog_data
->binding_table
.ssbo_start
= 0xd0d0d0d0;
699 if (INTEL_DEBUG
& DEBUG_SHADER_TIME
) {
700 stage_prog_data
->binding_table
.shader_time_start
= next_binding_table_offset
;
701 next_binding_table_offset
++;
703 stage_prog_data
->binding_table
.shader_time_start
= 0xd0d0d0d0;
706 if (prog
->nir
->info
.uses_texture_gather
) {
707 if (devinfo
->gen
>= 8) {
708 stage_prog_data
->binding_table
.gather_texture_start
=
709 stage_prog_data
->binding_table
.texture_start
;
711 stage_prog_data
->binding_table
.gather_texture_start
= next_binding_table_offset
;
712 next_binding_table_offset
+= num_textures
;
715 stage_prog_data
->binding_table
.gather_texture_start
= 0xd0d0d0d0;
718 if (prog
->info
.num_abos
) {
719 stage_prog_data
->binding_table
.abo_start
= next_binding_table_offset
;
720 next_binding_table_offset
+= prog
->info
.num_abos
;
722 stage_prog_data
->binding_table
.abo_start
= 0xd0d0d0d0;
725 if (prog
->info
.num_images
) {
726 stage_prog_data
->binding_table
.image_start
= next_binding_table_offset
;
727 next_binding_table_offset
+= prog
->info
.num_images
;
729 stage_prog_data
->binding_table
.image_start
= 0xd0d0d0d0;
732 /* This may or may not be used depending on how the compile goes. */
733 stage_prog_data
->binding_table
.pull_constants_start
= next_binding_table_offset
;
734 next_binding_table_offset
++;
736 /* Plane 0 is just the regular texture section */
737 stage_prog_data
->binding_table
.plane_start
[0] = stage_prog_data
->binding_table
.texture_start
;
739 stage_prog_data
->binding_table
.plane_start
[1] = next_binding_table_offset
;
740 next_binding_table_offset
+= num_textures
;
742 stage_prog_data
->binding_table
.plane_start
[2] = next_binding_table_offset
;
743 next_binding_table_offset
+= num_textures
;
745 /* prog_data->base.binding_table.size will be set by brw_mark_surface_used. */
747 assert(next_binding_table_offset
<= BRW_MAX_SURFACES
);
748 return next_binding_table_offset
;